Sunlight can reduce multiple sclerosis progression
Vitamin D status seems to be associated with reduced disease activity in patients with multiple sclerosis (MS) and a slower rate of disease progression, a new study has suggested.
Researchers led by Alberto Ascherio, M.D., Dr.P.H., of the Harvard School of Public Health, Boston, examined whether blood concentration of 25-hydroxyvitamin D (25[OH]D), a marker of vitamin D status, was associated with MS disease activity and progression in patients with a first episode suggestive of MS.
Blood 25[OH]D levels were measured as part of a randomized trial originally designed to study patients given interferon beta-1b treatment. A total of 465 patients (of the 468 enrolled) had at least one 25[OH]D measurement. Patients were followed for up to five years with magnetic resonance imaging.
Increases of 50-nmol/L in average blood 25[OH]D levels within the first 12 months appeared to be associated with a 57 percent lower risk of new active brain lesions, 57 percent lower risk of relapse, 25 percent lower yearly increase in T2 lesion volume and 0.41 percent lower yearly loss in brain volume from months 12 to 60.
(Posted on 21-01-2014)
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